单纯疱疹病毒性脑炎病因治疗应选择下列哪种药物（）
A.氯霉素
B.地塞米松
C.阿昔洛韦
D.万古霉素
E.氟胞嘧啶
参考答案：C
人类的祖先是（ ）
A．森林古猿
B．黑猩猩
C．类人猿
D．大猩猩
. Americans eat______vegetables per person today as they did in
A．more than twice
B．as twice as many
C．twice as many as
D．more than twice as many
